Private Sub Option1_Click() Form2.Label6.Enabled = False Form2.Label7.Enabled = False Form2.Label8.Enabled = False Form2.Label9.Enabled = False Form2.Label10.Enabled = False For n = 6 To 10
Form2.Text1(n).Enabled = False
Form2.Text1(n).BackColor = &H8000000F Form2.Text2(n).Enabled = False
Form2.Text2(n).BackColor = &H8000000F Next End Sub
Private Sub Option2_Click() Form2.Label6.Enabled = True Form2.Label7.Enabled = False Form2.Label8.Enabled = False Form2.Label9.Enabled = False Form2.Label10.Enabled = False Form2.Text1(6).Enabled = True
Form2.Text1(6).BackColor = &HFFFFFF Form2.Text2(6).Enabled = True
Form2.Text2(6).BackColor = &HFFFFFF For n = 7 To 10
Form2.Text1(n).Enabled = False
Form2.Text1(n).BackColor = &H8000000F Form2.Text2(n).Enabled = False
Form2.Text2(n).BackColor = &H8000000F Next End Sub
Private Sub Option3_Click() Form2.Label6.Enabled = True Form2.Label7.Enabled = True Form2.Label8.Enabled = False Form2.Label9.Enabled = False Form2.Label10.Enabled = False For n = 6 To 7
Form2.Text1(n).Enabled = True
Form2.Text1(n).BackColor = &HFFFFFF Form2.Text2(n).Enabled = True
Form2.Text2(n).BackColor = &HFFFFFF Next
For n = 8 To 10
Form2.Text1(n).Enabled = False
Form2.Text1(n).BackColor = &H8000000F Form2.Text2(n).Enabled = False
Form2.Text2(n).BackColor = &H8000000F Next End Sub
Private Sub Option4_Click() Form2.Label6.Enabled = True Form2.Label7.Enabled = True Form2.Label8.Enabled = True Form2.Label9.Enabled = False Form2.Label10.Enabled = False For n = 6 To 8
Form2.Text1(n).Enabled = True
Form2.Text1(n).BackColor = &HFFFFFF Form2.Text2(n).Enabled = True
Form2.Text2(n).BackColor = &HFFFFFF Next
For n = 9 To 10
Form2.Text1(n).Enabled = False
Form2.Text1(n).BackColor = &H8000000F Form2.Text2(n).Enabled = False
Form2.Text2(n).BackColor = &H8000000F Next End Sub
Private Sub Option5_Click() Form2.Label6.Enabled = True Form2.Label7.Enabled = True Form2.Label8.Enabled = True Form2.Label9.Enabled = True Form2.Label10.Enabled = False Form2.Text1(10).Enabled = False
Form2.Text1(10).BackColor = &H8000000F Form2.Text2(10).Enabled = False
Form2.Text2(10).BackColor = &H8000000F For n = 6 To 9
Form2.Text1(n).Enabled = True
Form2.Text1(n).BackColor = &HFFFFFF Form2.Text2(n).Enabled = True
Form2.Text2(n).BackColor = &HFFFFFF Next
End Sub
Private Sub Option6_Click() Form2.Label6.Enabled = True Form2.Label7.Enabled = True Form2.Label8.Enabled = True Form2.Label9.Enabled = True Form2.Label10.Enabled = True For n = 6 To 10
Form2.Text1(n).Enabled = True
Form2.Text1(n).BackColor = &HFFFFFF Form2.Text2(n).Enabled = True
Form2.Text2(n).BackColor = &HFFFFFF Next End Sub
Form2:
Option Base 1 Dim m As Integer Dim X(10) As Single Dim Y(10) As Single
Private Sub Command1_Click() '进入第三个绘图窗体 Form1.Hide Form2.Hide Form3.Show
Dim A As Single '截距 Dim B As Single '斜率 Dim c As Single Dim d As Single Dim e As Single Dim f As Single Dim W As Single Dim R As Single Dim T As Single '讨论点的个数
If Form2.Text1(5).Enabled = True Then m = 5 If Form2.Text1(6).Enabled = True Then m = 6 If Form2.Text1(7).Enabled = True Then m = 7 If Form2.Text1(8).Enabled = True Then m = 8
If Form2.Text1(9).Enabled = True Then m = 9 If Form2.Text1(10).Enabled = True Then m = 10
'对点的x.y坐标进行赋值 If m = 5 Then
For n = 1 To 5
X(n) = Text1(n).Text Y(n) = Text2(n).Text Next End If
If m = 6 Then For n = 1 To 6
X(n) = Text1(n).Text Y(n) = Text2(n).Text Next End If
If m = 7 Then For n = 1 To 7
X(n) = Text1(n).Text Y(n) = Text2(n).Text Next End If
If m = 8 Then For n = 1 To 8
X(n) = Text1(n).Text Y(n) = Text2(n).Text Next End If
If m = 9 Then For n = 1 To 9
X(n) = Text1(n).Text Y(n) = Text2(n).Text Next End If
If m = 10 Then For n = 1 To 10
X(n) = Text1(n).Text Y(n) = Text2(n).Text Next End If
For n = 1 To m c = X(n) + c
d = X(n) * X(n) + d
e = X(n) * Y(n) + e f = Y(n) + f Next
A = (e * c - f * d) / (c * c - m * d) '计算直线的截距 B = (c * f - m * e) / (c * c - m * d) '计算直线的斜率
'打印数据方程的位置 Form3.CurrentX = 200 Form3.CurrentY = 350
Form3.Print \直线斜率(B)=\Form3.CurrentX = 200 Form3.CurrentY = 580
Form3.Print \直线截距(A)=\Form3.CurrentX = 200 Form3.CurrentY = 810
Form3.Print \直线方程为:\'在坐标图上打印出点来 For n = 1 To m
Form3.PSet (360 + 37 * X(n), 5400 - 37 * Y(n)), RGB(0, 0, 0) Next
W = 5400 - 3700 * B - 37 * A R = 360 + (3700 - 37 * A) / B T = 360 - 37 * A / B
'将超出坐标轴的线去掉 If A >= 0 Then
Form3.Line (360, 5400 - 37 * A)-(4060, W)
If W < 1700 Then Form3.Line (R, 1700)-(4060, W), &H8000000F
If W > 5400 And B < 0 Then Form3.Line (T, 5400)-(4060, W), &H8000000F Else
Form3.Line (360 + (5400 - 37 * A) / B, 5400)-(4060, W)
If W < 1700 Then Form3.Line (R, 1700)-(4060, W), &H8000000F
If W > 5400 And B < 0 Then Form3.Line (T, 5400)-(4060, W), &H8000000F End If End Sub
'返回第一个窗体
Private Sub Command2_Click() Form1.Show Form2.Hide Form3.Hide For n = 1 To m
Text1(n).Text = \ Text2(n).Text = \Next End Sub